Patent US3274419A successfully refreshed from Google Patents.
US3274419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible electroluminescent lamp having transparent metal-coated strands as the light transmitting electrode
Assignee: Dow Chemical Co
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Filing: 1962-01-23
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Granted: 1966-09-20
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Expires: 1982-01-23
Abstract
No abstract record available.
Inventors
- 👤 Harold H Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:06
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26; H05B33/28; H05B33/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A FLEXIBLE ELECTROLUMINESCENT LAMP OF IMPROVED EFFICIENCY CONSISTING OF A LAYER COMPRISING A FLEXIBLE SOLIDIFIED INTIMATE INTEMIXTURE OF A PHOSPHOR AND A RESINOUS DIELECTRIC MATERIAL, SAID LAYER PROVIDED WITH FLEXIBLE ELECTRICAL CONDUCTING SHEETS ADHERED TO THE OPPOSING FACES THEREOF, AT LEAST ONE OF SAID SHEETS BEING A LIGHT-TRANSMITTING MAT COMPOSED OF TRANSPARENT METAL-COATED, SPACED-APART STRANDS SELECTED FROM THE CLASS CONSISTING OF SYNTHETIC AND NATURAL FIBERS.
Claim 2
Dependent Claim
65 words
A FLEXIBLE ELECTROLUMINESCENT LAMP OF IMPROVED EFFICIENCY CONSISTING OF A LAYER COMPRISING A FLEXIBLE SOLIDIFIED INTIMATE INTEMIXTURE OF A PHOSPHOR AND A RESINOUS DIELECTRIC MATERIAL, SAID LAYER PROVIDED WITH FLEXIBLE ELECTRICAL CONDUCTING SHEETS ADHERED TO THE OPPOSING FACES THEREOF, AT LEAST ONE OF SAID SHEETS BEING A LIGHT-TRANSMITTING MAT COMPOSED OF TRANSPARENT METAL-COATED, SPACED-APART STRANDS SELECTED FROM THE CLASS CONSISTING OF SYNTHETIC AND NATURAL FIBERS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |